Is this ductwork legal?

Replies to This Discussion

Permalink Reply by Steven Lewis on June 13, 2011 at 1:32pm

The plastic would need to be rated for the temps the furnace delivers.  Is there a tag on the plastic?  The maufacturer would have the specs as to temp and application.  It isnt pretty but it is functional.  The specs on the plastic will give you the information you need but you might have to call the manufacturer.  I personally would be very suspect about it.   Have you performed a Temp Rise on the furnace?

Permalink Reply by Bill Bradbury on July 10, 2011 at 8:55am

This is crap work and should be redone, but is allowed by code.

Permalink Reply by Christopher Morin on April 29, 2012 at 6:41pm

I agree that the quality of work on this radial system can be called into question. But I a, very surprised to hear this would meet code. Based on the 2009 IECC, that ductwork being in unconditioned space should have a minimum R-value. Here is MA and RI, inspectors hold the contractor to this spec, R-8 outside the building envelope and R-6 for inside - in a basement like this for example. This may be a place to start regarding this particular job, looks pretty recent...

Permalink Reply by Christopher Morin on April 29, 2012 at 6:44pm

I agree that the quality of work on this radial system can be called into question. But I am very surprised to hear this would meet code. Based on the 2009 IECC, that ductwork being in unconditioned space should have a minimum R-value. Here is MA and RI, inspectors hold the contractor to this spec, R-8 outside the building envelope and R-6 for inside - in a basement like this for example. This may be a place to start regarding this particular job, looks pretty recent...